Miyamoto Musashi

Sparks flew as the two blades met, Gray's veins showing as he struggled to push the summon back.

'You're in for it now,' laughed the demon in Gray's mind as sweat collected on his forehead.

Gray kicked the samurai summon back, trying to create some distance, however, their blades remained locked.

The summon didn't budge, instead, it drove forward, pushing Gray back as if he weighed nothing.

'What the hell is up with this thing,' thought Gray as he was being overpowered. His feet barely managing to find a good grip on the ground.

Gray stopped trying to push back, realizing that he was bound to lose in a test of strength. In one swift movement, he created a crimson red pistol in his free hand while swinging his greatsword in the other.

The summon seemed to read Gray's movements, ignoring the greatsword while paying close attention to the pistol in his left hand.

'Fuck, it saw me,' thought Gray as he unloaded a magazine of bullets on the summon.